Kaata (The Warrior) will help your character find the Sith.
Most RP happens in the Story section, but extra Sithy things take place on the Korriban, Zion, and Coruscant sub-forums located in the Imperium Faction forum. There is no 'Main Story', instead everyone's threads mix together to form the entire narrative. The threads with the most impact that are happening right now are "The Battle for Klatooine" and a couple Anoth duels, but it is much too late to join either.
First create a thread. Then notify which one it is or post the link here.
I would like to request to join.
Okay, we'll see who else we get before locking people in. I would at least like one crusader.